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Toro 74830 Operator's Manual
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Toro 74830 Operator's Manual

Zero-turn-radius riding mower
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Form No. 3363-810 Rev A
TITAN ZX4800 Zero-Turn-Radius
Riding Mower
Model No. 74830—Serial No. 310000001 and Up
G009968
To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Original Instructions (EN)

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Summary of Contents for Toro 74830

  • Page 1 Form No. 3363-810 Rev A TITAN ZX4800 Zero-Turn-Radius Riding Mower Model No. 74830—Serial No. 310000001 and Up G009968 To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com. Original Instructions (EN)

  • Page 2: Introduction

    Authorized Service applications. It is primarily designed for cutting grass Dealer or Toro Customer Service and have the model on well-maintained lawns. It is not designed for cutting and serial numbers of your product ready. Figure 1...

  • Page 3: Table Of Contents

    Safety ................4 Mower Deck Leveling......... 42 Safe Operating Practices ........4 Inspecting the Belts ..........44 Toro Riding Mower Safety ........6 Replacing the Mower Belt ........44 Slope Indicator............. 7 Removing the Mower ......... 44 Safety and Instructional Decals ......8 Installing the Mower...........

  • Page 4: Safety

    Safety • Never leave a running machine unattended. Always turn off blades, set parking brake, stop engine, and remove key before dismounting. This machine meets or exceeds the B71.1-2003 specifications of the American National Standards • Turn off blades when not mowing. Stop the engine Institute, in effect at the time of production.
  • Page 5 Tall grass can hide A hitch kit is available for this machine and can be obstacles. obtained by contacting an Authorized Toro Dealer. • Avoid sudden starts when mowing uphill because Do not tow without first installing this manufacturer the mower may tip backwards.

  • Page 6: Toro Riding Mower Safety

    • Maintain or replace safety and instruction decals as necessary. • Use only genuine Toro replacement parts to ensure that original standards are maintained. Toro Riding Mower Safety The following list contains safety information specific to Toro products or other safety information that you must know that is not included in the ANSI standards.

  • Page 7: Slope Indicator

    Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope.

  • Page 8: Safety And Instructional Decals

    Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 115-9631 5. Fast 1. Power take-off (PTO), Blade control switch on 99-8936 some models 2.
  • Page 9 110-6691 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Thrown object hazard, mower—do not operate without the deflector, discharge cover, or grass collection system in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts. 112-9840 1.
  • Page 10 109-8965 1. Warning–read the Operator’s Manual. 2. Read the instructions before servicing or performing maintenance; apply parking brake, remove the ignition key and disconnect the spark plug wire. 3. Thrown object hazard—keep bystanders a safe distance from the machine, pick up debris before operating, keep the discharge deflector in place.
  • Page 11 117–7490 1. Fuel 2. Full 3. Half 4. Empty...

  • Page 12: Product Overview

    Product Overview G010001 Figure 4 1. Motion control levers 4. Fuel gauge 7. Anti-scalp roller 10. Control panel 2. Operator seat 5. Footrest 8. Deflector 3. Parking brake 6. Front caster wheel 9. Foot pedal deck lift and height-of-cut G010009 Figure 5 1.

  • Page 13: Controls

    Controls Become familiar with all the controls before you start the engine and operate the machine (Figure 6). G010016 G009918 Figure 6 1. Throttle and choke control 4. Blade control switch (PTO) 2. Hour meter 5. Fuses G010077 Figure 7 3.

  • Page 14: Operation

    Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments Think Safety First and accessories. Please carefully read all of the safety instructions and decals in the safety section.

  • Page 15: Adding Fuel

    DANGER In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills.

  • Page 16: Filling The Fuel Tank

    WARNING Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. G010016 • Avoid prolonged breathing of vapors. • Keep face away from nozzle and gas tank or conditioner opening. • Keep gas away from eyes and skin. Using Stabilizer/Conditioner Use a fuel stabilizer/conditioner in the machine to provide the following benefits:...

  • Page 17: Checking The Engine Oil Level

    Releasing the Parking Brake G010016 G010079 Figure 12 Operating the Throttle The throttle control can be moved between Fast and Slow positions (Figure 13). Always use the fast position when turning on the mower deck with the blade control switch (PTO). G010475 G010289 Figure 10...

  • Page 18: Operating The Ignition Switch

    Operating the Ignition Switch 1. Turn the ignition key to the Start position (Figure 15). When the engines starts, release the key. Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start allow a 15 second cool-down period between attempts.

  • Page 19: Operating The Mower Blade Control Switch (Pto)

    Stopping the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. G008945 Always remove the ignition key and set the parking Figure 19 brake when leaving the machine unattended, even if just for a few minutes.

  • Page 20: Driving Forward Or Backward

    Testing the Safety Interlock System Using the Motion Control Levers Test the safety interlock system before you use the machine each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately. 1.

  • Page 21: Stopping The Machine

    Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the blade control switch (PTO), and turn the ignition key to off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake.

  • Page 22: Adjusting The Anti-Scalp Rollers

    G010016 G010236 Figure 25 1. Deck lift pedal 4. Lock position. lowest height-of-cut (use only for deck removal) 2. Cut height pin 5. Lock position. transport position 3. Height-of-cut positions Using the Lock Positions G010219 The deck can be locked in the highest height-of-cut or Figure 24 transport position or the lowest height-of-cut position.

  • Page 23: Positioning The Seat

    Changing the Seat Ride Suspension The number of seat springs can be changed to maximize rider comfort. More springs should be used G010233 with heavier operators and on rough terrain. Fewer springs should be used with lighter operators and when mowing smooth, well established lawns.

  • Page 24: Pushing The Machine By Hand

    Pushing the Machine by Hand Important: Always push the machine by hand. Never tow the machine because damage may occur. To Push the Machine 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to neutral lock position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 25: Using The Side Discharge

    To Operate the Machine Cut 1/3 of the Grass Blade It is best to cut only about 1/3 of the grass blade. Move the bypass to the position for pushing the Cutting more than that is not recommended unless machine (Figure 31) to engage the wheel motors. grass is sparse, or it is late fall when grass grows more slowly.

  • Page 26: Blade Maintenance

    Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade.

  • Page 27: Maintenance

    Maintenance Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. After the first 8 hours • Change the hydraulic system filter and oil. After the first 50 hours • Check the safety interlock system. • Check the air cleaner for dirty, loose or damaged parts. •...
  • Page 28 Figure 32 Located on the seat pan underside 1. Read the Operator’s Manual before performing any 4. Check the hydraulic oil every 25 hours maintenance. 2. Check the engine oil every 8 hours 5. Check the caster wheel tire pressure every 25 hours 3.

  • Page 29: Premaintenance Procedures

    Premaintenance Lubrication Procedures Greasing the Bearings Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Make sure the motion control levers are locked in the Grease Type: No. 2 General Purpose Lithium Base neutral lock position. Lift the seat forward. Grease The following components can be accessed by raising 1.

  • Page 30: Engine Maintenance

    Engine Maintenance WARNING Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged G010338 parts.

  • Page 31: Servicing The Engine Oil

    Checking the Engine Oil Level Replace the air cleaner element yearly, or every 100 hours. Service Interval: Before each use or daily 1. Open the air cleaner cover door on the blower Note: Check the oil when the engine is cold. housing to access the air cleaner element (Figure 34).

  • Page 32: Changing The Engine Oil

    low, add oil of the proper type up to the full mark. Reinstall oil fill cap/dipstick and screw tight. Changing the Engine Oil G009950 Service Interval: After the first 8 hours Every 100 hours (more often under dusty, dirty conditions) Note: Dispose of the used oil at a recycling center.

  • Page 33: Servicing The Spark Plug

    Note: Ensure the oil filter gasket touches the engine 5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil and then an extra 3/4 turn is completed. to bring it to the Full mark. 3.

  • Page 34: Cleaning The Blower Housing

    Fuel System Maintenance Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever G008794 comes first) (more often under dusty, Figure 39 dirty conditions). 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral lock position, Installing the Spark Plug and set the parking brake.

  • Page 35: Electrical System Maintenance

    Electrical System WARNING Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in Servicing the Battery personal injury. • Always Disconnect the negative (black) battery Service Interval: Monthly cable before disconnecting the positive (red) cable.

  • Page 36: Servicing The Fuses

    5. Slide the red terminal boot off the positive (red) battery terminal and remove the positive (+)(red) battery cable (Figure 42). 6. Remove the clamp (Figure 42). 7. Remove the battery. Installing the Battery 1. Position battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 42).

  • Page 37: Drive System Maintenance

    Drive System Maintenance G010340 Checking the Tire Pressure Service Interval: Every 25 hours—Check tire pressure. Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut. Check the pressure at the valve stem (Figure 45). Check the tires when they are cold to get the most accurate pressure reading.

  • Page 38: Hydraulic System Maintenance

    Hydraulic System 2. Locate the filter and guards on each transaxle drive system (Figure 47). Remove three screws securing Maintenance the filter guard and guard. Oil Type: 20w-50 engine oil. G010254 Important: Use oil specified or equivalent. Other fluids could cause system damage. Checking the Hydraulic Oil Level Service Interval: Every 25 hours...

  • Page 39: Bleeding The Hydraulic System

    G010333 Figure 49 1. Jacking points 2. Start engine and move throttle control ahead to 1/2 throttle position. Disengage parking brake. A. Move the bypass levers into the pushing the machine position; refer to the Pushing the Machine by Hand section in Operation. With the bypass valves open and the engine running, slowly move the motion control levers in both forward and reverse (5 or 6 times).

  • Page 40: Mower Deck Maintenance

    Checking for Bent Blades blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement Note: The machine must be on a level surface for the blade. For convenient sharpening and replacement, you following procedure.

  • Page 41: Removing The Blades

    3. Opposing side of blade being moved into measurement 1/8 inch (3mm), the blade spindle could be bent. position Contact an Authorized Toro Dealer for service. B. If the variance is within constraints, move to the 5. Measure from the tip of the blade to the flat surface next blade..

  • Page 42: Mower Deck Leveling

    Figure 57 1. Blade 2. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Figure 55). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2.

  • Page 43: Leveling The Mower Deck

    are not within 3/16 inch (5 mm), an adjustment is required; continue to the Leveling procedure. Figure 59 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface Figure 58 here 2. Outside cutting edges 1.

  • Page 44: Inspecting The Belts

    then tighten the four leveling adjust locking nuts 5. Recheck that blocks fit just snugly under the deck (Figure 61). skirt. Make sure all attachment bolts are tight 6. Verify the deck is level by checking the side-to-side level and front-to-rear blade slope; repeat deck leveling procedure if necessary.

  • Page 45: Installing The Mower

    Installing the Mower 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to the neutral lock position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
  • Page 46 G006036 G006049 Figure 66 1. Rod and spring assembly 3. Rod, short end, moved Figure 65 partially installed behind mower bracket 2. Long end of the spring 4. Short end, retained by 1. Deflector assembly 4. Spring installed into the notch in mower bracket.

  • Page 47: Cleaning

    Cleaning 6. Disengage the blade control switch, stop the engine, and remove the ignition key. Wait for all moving parts to stop. Washing the Underside of the 7. Turn the water off and remove the coupling from Mower the washout fitting. Note: If the mower is not clean after one washing, Service Interval: Before each use or daily—Clean the soak it and let it stand for 30 minutes.

  • Page 48: Storage

    Storage B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). Cleaning and Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the 1. Disengage the blade control switch (PTO), set the Maintenance Section.

  • Page 49: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control switch (PTO) is engaged. 1. Move blade control switch (PTO) to disengaged. 2. Parking brake is not on. 2. Set the parking brake. 3. Drive levers are not in neutral lock 3.
  • Page 50 Problem Possible Cause Corrective Action Machine does not drive. 1. By pass valves is not closed tight. 1. Tighten the by pass valves. 2. Pump belt is worn, loose or broken. 2. Change the belt. 3. Pump belt is off a pulley. 3.

  • Page 51: Schematics

    Schematics G012083 Wire Diagram (Rev. A)

  • Page 52: Conditions And Products Covered

    Countries Other than the United States or Canada Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor’s service or have difficulty obtaining guarantee information, contact the Toro importer.

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